Mutations were revealed in seven strains in Ser83 codon in gyrA that has already been identified in human strains. Similarly, induction of resistance by a mutation in the remaining gyrB Lys447, which was replaced by arginine,was also founding human strains. Since strains isolated from animals showed the same mutations found in human isolates and the appearance of mutations in response to induction of resistance in susceptible strainsit is suggested that the study be extended to include a large rnumber of isolates,inorder to explain the real effect thattheuseofantibiotics has on the resistance of the strains isolated from animals and the likelihood of a possible transfer of this resistance to humans through food